A quarter-century ago, in the wake of America’s first energy crisis, a young scientist named Amory Lovins came to the Rocky Mountains and built himself a radical house based on a radical idea. The country could save both energy and money, he believed, by combining common sense and unconventional technology.

Mr. Lovins did achieve substantial energy savings, and many of his innovations, from better insulation to multiple-pane windows to more-efficient refrigerators, eventually became familiar fixtures in American homes….

Now, Mr. Lovins has completed a renovation that he hopes will demonstrate how much more energy-efficient houses can become. But the project also serves as a reminder of the still-enormous gulf between what is technologically possible and what society is able or willing to pay for….

Some of his proudest advances stem from mundane changes. He installed an electric stove made by a Swiss company that is 60% more efficient than other models he found. The savings stem partly from pots designed specifically for the stove. The pots eliminate warping that typically occurs with copper cookware, wasting heat.

He also has shaved energy use by insisting on an unconventional plumbing design. Typically, residential pipes that carry water would be ½-inch wide and turn at right angles. But that builds up friction, requiring electric pumps to work harder to propel the water. So Mr. Lovins had ¾-inch-wide pipes installed that run diagonally across ceilings and walls to minimize friction.

“If it looks pretty,” he says, “it probably doesn’t save energy.”

Source: Climate Progress

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